bustabit.com -- The Social Gambling Game

[RHavar]

Is he same Chelashin who won over 100BTC at PocketDice?

No idea, really. I've actually never chatted with him yet =)

But most gamblers like to use the same style of gambling no matter what site they're on. Did he martingale his way up on PocketDice?

[joksim299]

Is he same Chelashin who won over 100BTC at PocketDice?

No idea, really. I've actually never chatted with him yet =)

But most gamblers like to use the same style of gambling no matter what site they're on. Did he martingale his way up on PocketDice?

I know for him from this scam accusation against PD, but they paid him in the end.
https://bitcointalk.org/index.php?topic=1620544.0

[ctlaltdefeat]

Nice site, excellent idea!

I'd really like to see code for as much of the game as possible, because the current explanation is ambiguous at times (or at least, unclear).

Examples of things that aren't clear to me:

1) In the "What is the bonus?" section in the FAQ, what happens when the 100 bit player is the only player to cash out before bust? On the one hand, the explanation in the section claims the bonus rewarded to this player is 2.5 bits. On the other hand, it is claimed in another section that the entire bonus pool is always distributed.
2) Players A,B,C stake 100 bits each. The three of them cash out at the exact same multiplier (say via script). Once again, the "What is the bonus?" section in the FAQ does not adequately explain who gets what bonus. It seems intuitive that each would receive a bit. Now what happens if A instead staked 101 bits, and once again they all cashed out at the same multiplier? Does A now receive the entire bonus?
3) In the game itself, what does the bonus % column indicate?

[RHavar]

Nice site, excellent idea!

I'd really like to see code for as much of the game as possible, because the current explanation is ambiguous at times (or at least, unclear).

Examples of things that aren't clear to me:

1) In the "What is the bonus?" section in the FAQ, what happens when the 100 bit player is the only player to cash out before bust? On the one hand, the explanation in the section claims the bonus rewarded to this player is 2.5 bits. On the other hand, it is claimed in another section that the entire bonus pool is always distributed.

The bonus pool is *always* given out on every single game (where the bust isn't 0x). If there's money left over after giving it to people who have cashed out, it is just equally divided amongst the remaining players based on their wager

2) Players A,B,C stake 100 bits each. The three of them cash out at the exact same multiplier (say via script). Once again, the "What is the bonus?" section in the FAQ does not adequately explain who gets what bonus. It seems intuitive that each would receive a bit.

Yeah, if two people cash out at the same multiplier they are given the same amount of bonuses.

Now what happens if A instead staked 101 bits, and once again they all cashed out at the same multiplier? Does A now receive the entire bonus?

They would each be given exactly 1% of what they wagered. Which means B and C would get 1 bit, and A would get 1.01 bits.

3) In the game itself, what does the bonus % column indicate?

The amount of bonus they will get as a % of their wager

[ctlaltdefeat]

Nice site, excellent idea!

I'd really like to see code for as much of the game as possible, because the current explanation is ambiguous at times (or at least, unclear).

Examples of things that aren't clear to me:

1) In the "What is the bonus?" section in the FAQ, what happens when the 100 bit player is the only player to cash out before bust? On the one hand, the explanation in the section claims the bonus rewarded to this player is 2.5 bits. On the other hand, it is claimed in another section that the entire bonus pool is always distributed.

The bonus pool is *always* given out on every single game (where the bust isn't 0x). If there's money left over after giving it to people who have cashed out, it is just equally divided amongst the remaining players based on their wager

2) Players A,B,C stake 100 bits each. The three of them cash out at the exact same multiplier (say via script). Once again, the "What is the bonus?" section in the FAQ does not adequately explain who gets what bonus. It seems intuitive that each would receive a bit.

Yeah, if two people cash out at the same multiplier they are given the same amount of bonuses.

Now what happens if A instead staked 101 bits, and once again they all cashed out at the same multiplier? Does A now receive the entire bonus?

They would each be given exactly 1% of what they wagered. Which means B and C would get 1 bit, and A would get 1.01 bits.

3) In the game itself, what does the bonus % column indicate?

The amount of bonus they will get as a % of their wager

Somehow I'm even more confused now. The fact that "if there's money left over after giving it to people who have cashed out, it is just equally divided amongst the remaining players based on their wager" doesn't appear to be mentioned anywhere, and "equally divided amongst the remaining players based on their wager" seems like an oxymoron to me.

The underlying issue is that I can't seem to extrapolate the general method from these examples.

Would you care to address the general case, which I have outlined below (as I understand it)?

[RHavar]

If you're familiar with javascript, you can see exactly the code:

https://github.com/kungfuant/bustabit-gameserver/blob/master/server/game.js#L543-L627


Basically, after a game ends:

Step 1: https://github.com/kungfuant/bustabit-gameserver/blob/master/server/game.js#L573

Sort everyone in order of their cash out. People who cashed out last are at the start. People who haven't cashed out are at the very end. If two people cash out at the same point, it doesn't matter the ordering.


Step 2: https://github.com/kungfuant/bustabit-gameserver/blob/master/server/game.js#L573

let "bonusPool" bet 1% of what everyone bet


Step 3: https://github.com/kungfuant/bustabit-gameserver/blob/master/server/game.js#L579

let "largestBet"  be the the most anyone bet


Step 4: https://github.com/kungfuant/bustabit-gameserver/blob/master/server/game.js#L595

let "maxWinRatio" be bonusPool / largestBet

Step 5: https://github.com/kungfuant/bustabit-gameserver/blob/master/server/game.js#L597

Iterate through the sorted list (from step 1) grouping by everyone who cashed out at the same point.

Attempt to give out the entire bonus pool to those players based on how much they wagered. However,
never give out more than "maxWinRatio" of their bet (to avoid it being unfair to large players) and never give
out more than the bonus pool.

What ever is given out during that iteration is deducted from "bonusPool" and if more money is still available
continue the iteration.




I'm not sure if that makes it clearer, but I hope so.

[RHavar]

Perhaps it makes more sense if you start with the high level:


Originally in bustabit everyone had to bet the same amount of money. When ever the the game busted, 1% of the sum of peoples wagers (the bonus pool) was given out to who ever cashed out last. If multiple people cashed out at the same point, it was divided equally amongst those participants. (and no one cashing out is the same as everyone cashing out at the same point, i.e. everyone gets 1% back).


However, people didn't like to wager the same amount of money and it was introduced the idea of allowing people to vary their wagers. So giving the last person to cashout the entire bonus pot would be pretty unfair. (someone who bets 1 bit, shouldn't get the same bonus as someone who bets 1 bitcoin). So that's how the whole "maxBonusRatio" thing came into play. It figures out the most the largest better could make (assuming he got the entire bonus pot) and caps everyone to the same ratio.  The code simply iterates through all the players and allocates bonuses accordingly, making sure no one can get an unfair amount.

Now the game is just as far for someone who bets 1 bit and 1 bitcoin =)

[ctlaltdefeat]

Thanks, that clarifies it.

Didn't realise the entire game was open source

[dooglus]

Didn't realise the entire game was open source

I'm not sure it is any more, but an old version of the source is available. I think some anti-spam or anti-DDoS measures were added "in secret" to make it harder for attackers to circumvent them.

[RHavar]

I'm not sure it is any more, but an old version of the source is available. I think some anti-spam or anti-DDoS measures were added "in secret" to make it harder for attackers to circumvent them.

Yeah, because of some abuse (and the abusers watching the open source changes to continue to abuse) I made it closed source, but you can still access the old version. Things like the bonuses and core mechanics of the game are unmodified. 

And making the later versions closed source has been a decent revenue stream, I've sold a whole bunch of licenses to sites (especially csgo ones) for 2 BTC a piece =)

[oxygen88]

Wow chelashin again winning another 100 BTC from this site, this guy is rich just from gambling, amazing

[shulio]

Wow chelashin again winning another 100 BTC from this site, this guy is rich just from gambling, amazing

https://www.bustabit.com/game/3455956. That game was what makes him getting over 100 btc in profit again. Im kinda not knowing this guy but he seems to be a very highroller, is there any references to where I can check his other status in another gambling site except bustabit? Well the guy is rich and not that it really matters anyway

[Zenzolina]

Thats nothing. Today guy went 1btc on 20x cashout lol

[RHavar]

Our latest entrant to the >100 BTC profit club:

[rfisher1968]

If the hash of each game is made from a hash from reverse chain + hash of most recent block found hashed. How can I verify that you are using the correct hash from the chain and hash of the most recent block?

[RHavar]

If the hash of each game is made from a hash from reverse chain + hash of most recent block found hashed. How can I verify that you are using the correct hash from the chain and hash of the most recent block?

Here's the thread for the provably fair: https://bitcointalk.org/index.php?topic=922898.0

which (imo) does a good job of explaining how it works.


Also it does not use the hash from the most recently found bitcoin block, as that would be subject to a whole host of problems (timing issues, forks, difficult to verify, etc.). So the "client seed" is always the exact same bitcoin block (which was decided before we started the provably fair, but after we had already committed to a particular hash chain). You can treat it as a hardcoded constant, and check the "seeding event" to see how we fairly came upon it.

[rfisher1968]

I did read that, I guess I missed the clientseed being a constant. Is this the clientseed: 000000000000000012e8c0efdff2b8f67282e211749cc5530bd6e709f70279e1

If the hash of each game is made from a hash from reverse chain + hash of most recent block found hashed. How can I verify that you are using the correct hash from the chain and hash of the most recent block?

Here's the thread for the provably fair: https://bitcointalk.org/index.php?topic=922898.0

which (imo) does a good job of explaining how it works.


Also it does not use the hash from the most recently found bitcoin block, as that would be subject to a whole host of problems (timing issues, forks, difficult to verify, etc.). So the "client seed" is always the exact same bitcoin block (which was decided before we started the provably fair, but after we had already committed to a particular hash chain). You can treat it as a hardcoded constant, and check the "seeding event" to see how we fairly came upon it.

[RHavar]

I did read that, I guess I missed the clientseed being a constant. Is this the clientseed: 000000000000000012e8c0efdff2b8f67282e211749cc5530bd6e709f70279e1

No, that's from the example code    (We provided the example code before the client seed was even known, so we couldn't use the real client seed).


The actual client seed is the blockhash of block height: 339300 i.e. 000000000000000007a9a31ff7f07463d91af6b5454241d5faf282e5e0fe1b3a

[YAYOBROBRO]

Here in a few i will me commenting on my experience here!!

[RHavar]

Here in a few i will me commenting on my experience here!!

You will find I don't respond well to blackmail. But I'm happy to go through that song and dance if you want to waste both of our time.